Patent US3711089A successfully refreshed from Google Patents.
US3711089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ski training apparatus
Assignee: Individual
•
Filing: 1969-10-20
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Granted: 1973-01-16
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Expires: 1989-10-20
Abstract
Abstract A ski training device for simulating substantially all of the movements encountered during normal skiing, such as longitudinal, vertical and sidewards of tilting movements. Each ski is advantageously supported by at least one pair of spaced rollers, and the skis may rest either directly upon the rollers, or upon endless belts passing around and extending between the forward and rearward rollers of each pair. According to one embodiment of the invention longitudinal movement of the skis may be imparted by a crank arrangement which acts upon flexible pulley cords or belts to lengthwise shift the skis. A further embodiment of the invention contemplates vertical pivotal movement of each roller through the provision of a hydraulic cylinder drive arrangement which is operatively associated with lever members acting upon the rollers. A further embodiment of the invention and serving for producing irregular longitudinal and transverse tilting movement of the skis contemplates eccentrically mounting the rollers upon transverse axles, the forward and rearward rollers of each pair being counter rotated by means of a gear train, the rollers supporting one ski rotating faster than those supporting the other ski to thereby produce both longitudinal and tilting movement of the skis. The invention also teaches the possibility of not powering the rollers but having such mounted so as to be freely rotatable in response to forward and rearward movement of the skis. Weights or springs may be used for rotationally biasing the rollers to a rest position and providing resistance against rotation. Hydraluc cylinders or cam operated crank arms may also be provided for effecting vertical or pivotal movement of each roller relative to the others.
Inventors
- 👤 P Reinhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:39
CPC Classifications
A; A63; A63B; A63B22/00; A63B22/20; A63B22/201; A63B22/203; A63B22/0015; A63B22/0023; A63B69/00; A63B69/18; A63B69/182
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
103 words
A ski training device comprising support means supporting a pair of skis, means for imparting forward and rearward longitudinal movement to at least one of said skis, means for tilting said support means in at least one direction, said supporting means comprising at least one pair of forward and rearward support rollers respectively supporting the forward and rearward ends of each of said skis, said rollers being rotatable about axes disposed transversely to the length of said skis, and said means for imparting motion to said ski comprises drive means for counter-rotating the rollers of said pair of rollers relative to each other.
Claim 2
Dependent Claim
103 words
A ski training device comprising support means supporting a pair of skis, means for imparting forward and rearward longitudinal movement to at least one of said skis, means for tilting said support means in at least one direction, said supporting means comprising at least one pair of forward and rearward support rollers respectively supporting the forward and rearward ends of each of said skis, said rollers being rotatable about axes disposed transversely to the length of said skis, and said means for imparting motion to said ski comprises drive means for counter-rotating the rollers of said pair of rollers relative to each other.
Claim 3
Dependent Claim
23 words
A device as defined in claim 1 wherein said tilting means comprises eccentric axles upon which each of said rollers is rotatably mounted.
Claim 4
Dependent Claim
29 words
A device as defined in claim 2 wherein the forward and rearward rollers of each said pair of rollers are driven at different rotational speeds relative to each other.
Claim 5
Dependent Claim
34 words
A device as defined in claim 2 wherein two pairs of said rollers are provided, each of said rollers being driven at a different rotational speed from each of the others of said rollers.
Claim 6
Dependent Claim
81 words
A device as defined in claim 2 wherein said tilting means comprises a crank arm associated with each of said rollers, said crank arm having a vertical portion and a horizontal portion and pivotally mounted upon a stationary frame portion of the device intermediate said horizontal and vertical portions, each said axle being pivotally secured to the end of said horizontal portion, and means engaging said vertical portion for pivoting said crank arm, thereby pivoting said axle and said roller therewith.
Claim 7
Dependent Claim
20 words
A device as defined in claim 5 wherein said last named means comprises the piston rod of a hydraulic piston.
Claim 8
Dependent Claim
16 words
A device as defined in claim 5 wherein said last named means comprises a rotary cam.
Claim 9
Dependent Claim
142 words
A ski training device comprising support means supporting a pair of skis, means for imparting forward and rearward longitudinal movement to at least one of said skis, means for tilting said support means in at least one direction, said supporting means comprises at least one pair of forward and rearward support rollers respectively supporting the forward and rearward ends of each of said skis, said rollers being rotatable about axes disposed transversely to the length of said skis, and said means for imparting motion to said ski comprises a crank arm adapted for rotation and having a crank pin secured to one end thereof, and a flexible rope secured at one end thereof to said crank pin and at the other end thereof to the forward end of said one ski, whereby rotation of said crank arm will draw one ski forwardly.
Claim 10
Dependent Claim
142 words
A ski training device comprising support means supporting a pair of skis, means for imparting forward and rearward longitudinal movement to at least one of said skis, means for tilting said support means in at least one direction, said supporting means comprises at least one pair of forward and rearward support rollers respectively supporting the forward and rearward ends of each of said skis, said rollers being rotatable about axes disposed transversely to the length of said skis, and said means for imparting motion to said ski comprises a crank arm adapted for rotation and having a crank pin secured to one end thereof, and a flexible rope secured at one end thereof to said crank pin and at the other end thereof to the forward end of said one ski, whereby rotation of said crank arm will draw one ski forwardly.
Claim 11
Dependent Claim
28 words
A device as defined in claim 8, further comprising return spring means to draw said one ski rearwardly opposite the action of said crank arm and said rope.
Claim 12
Dependent Claim
65 words
A device as defined in claim 9, further comprising a second flexible rope secured at one end thereof to the rearward end of said one ski and at the other end thereof to the rearward end of the other of said skis, and passing over a pulley intermediate said ends of said rope, whereby forward movement of either ski will draw the other ski rearwardly.
Claim 13
Dependent Claim
123 words
A ski training device comprising support means supporting a pair of skis, means for imparting forward and rearward longitudinal movement to at least one of said skis, means for tilting said support means in at least one pair of forward and rearward support rollers respectively supporting the forward and rearward ends of each of said skis, said rollers being rotatable about axes disposed transversely to the length of said skis, and said means for imparting motion to said ski comprises a crank arm rigidly secured at one end thereof to at least one of said rollers, said crank arm being pivotally secured at its other end to a rotating crank, whereby rotation of said crank will oscillate said crank arm and said roller.
Claim 14
Dependent Claim
123 words
A ski training device comprising support means supporting a pair of skis, means for imparting forward and rearward longitudinal movement to at least one of said skis, means for tilting said support means in at least one pair of forward and rearward support rollers respectively supporting the forward and rearward ends of each of said skis, said rollers being rotatable about axes disposed transversely to the length of said skis, and said means for imparting motion to said ski comprises a crank arm rigidly secured at one end thereof to at least one of said rollers, said crank arm being pivotally secured at its other end to a rotating crank, whereby rotation of said crank will oscillate said crank arm and said roller.
Claim 15
Dependent Claim
87 words
A ski training device comprising means for supporting at least one of a pair of skis, and means for moving said supporting means vertically and in the longitudinal direction of said ski, said supporting means comprising at least two rollers, each of which rollers is rotaTable about an axis, the axes of said rollers being disposed transversely to the longitudinal axis of said skis, at least one of said rollers being adapted to be pivoted vertically, each of said rollers being pivotally mounted on a lever arm.
Claim 16
Dependent Claim
87 words
A ski training device comprising means for supporting at least one of a pair of skis, and means for moving said supporting means vertically and in the longitudinal direction of said ski, said supporting means comprising at least two rollers, each of which rollers is rotaTable about an axis, the axes of said rollers being disposed transversely to the longitudinal axis of said skis, at least one of said rollers being adapted to be pivoted vertically, each of said rollers being pivotally mounted on a lever arm.
Claim 17
Dependent Claim
74 words
A ski training device comprising means for supporting at least one of a pair of skis, and means for moving said supporting means vertically and in the longitudinal direction of said ski, said supporting means comprising at least two rollers, each of which rollers is rotatable about an axis, the axes of said rollers being disposed transversely to the longitudinal axis of said skis, at least one of said rollers comprises an eccentric member.
Claim 18
Dependent Claim
74 words
A ski training device comprising means for supporting at least one of a pair of skis, and means for moving said supporting means vertically and in the longitudinal direction of said ski, said supporting means comprising at least two rollers, each of which rollers is rotatable about an axis, the axes of said rollers being disposed transversely to the longitudinal axis of said skis, at least one of said rollers comprises an eccentric member.
Claim 19
Dependent Claim
21 words
A device as defined in claim 13 wherein the axis of said eccentric member is rotatably secured eccentrically to said member.
Claim 20
Dependent Claim
82 words
A ski training device comprising means for supporting at least one of a pair of skis, and means for moving said supporting means vertically and in the longitudinal direction of said ski, said supporting means comprises at least two rollers, each of which rollers is rotatable about an axis, the axes of said rollers being disposed transversely to the longitudinal axis of said skis, and said two rollers each being driven by motor means in opposite rotational directions relative to each other.
Claim 21
Dependent Claim
82 words
A ski training device comprising means for supporting at least one of a pair of skis, and means for moving said supporting means vertically and in the longitudinal direction of said ski, said supporting means comprises at least two rollers, each of which rollers is rotatable about an axis, the axes of said rollers being disposed transversely to the longitudinal axis of said skis, and said two rollers each being driven by motor means in opposite rotational directions relative to each other.
Claim 22
Dependent Claim
31 words
A device as defined in claim 15 wherein said rollers supporting one of said skis are driven at a different rotational speed from the rollers supporting the other of said skis.
Claim 23
Dependent Claim
80 words
A ski training device comprising means for supporting at least one of a pair of skis, and means for moving said supporting means vertically and in the longitudinal direction of said ski, said supporting means comprising four rollers rotatably secured within a frame, said rollers being driven by motor means about eccentric axes, at least both rollers supporting one of said skis being driven at the same rotational speed, and the rollers supporting different skis rotating at different rotational speeds.
Claim 24
Dependent Claim
80 words
A ski training device comprising means for supporting at least one of a pair of skis, and means for moving said supporting means vertically and in the longitudinal direction of said ski, said supporting means comprising four rollers rotatably secured within a frame, said rollers being driven by motor means about eccentric axes, at least both rollers supporting one of said skis being driven at the same rotational speed, and the rollers supporting different skis rotating at different rotational speeds.
Claim 25
Dependent Claim
90 words
A ski training device comprising means for supporting at least one of a pair of skis, and means for moving said supporting means vertically and in the longitudinal direction of said ski, said supporting means comprises at least two rollers, each of which rollers is rotatable about an axis, the axes of said rollers being disposed transversely to the longitudinal axis of said skis, and further comprising handrails disposed to the side of said supporting means, one of said handrails being adapted to operate a stopping means for said rollers.
Claim 26
Dependent Claim
90 words
A ski training device comprising means for supporting at least one of a pair of skis, and means for moving said supporting means vertically and in the longitudinal direction of said ski, said supporting means comprises at least two rollers, each of which rollers is rotatable about an axis, the axes of said rollers being disposed transversely to the longitudinal axis of said skis, and further comprising handrails disposed to the side of said supporting means, one of said handrails being adapted to operate a stopping means for said rollers.
Claim 27
Dependent Claim
24 words
A device as defined in claim 18 wherein the other of said handrails is adapted to operate a speed control means for said rollers.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |